According to the University of Michigan Health C.S. Mott Children's Hospital National Poll on Children's Health, two-thirds of parents have had at least one day in the last two years with poor or dangerous air quality in their neighbourhood.
According to the University of Michigan Health C.S. Mott Children's Hospital National Poll on Children's Health, two-thirds of parents had experienced at least one day with poor or dangerous air quality in their neighbourhood in the last two years.